Piston for gas or other motors.



No. 700,309. Patented may 20, |002.

` H. E; Esas. PISTUN FDRGAS BROTHER MOTORS.

(Application med' Dec. 19, 1899.)

(Nollodel.)

fa b f l 'fb um I l TTORNEYS;

-IIERMArm Ent-infrEnns,iorNREMInrRGy GERiviANYjAssieNoR,To THE [UNiTEo/Srarns* FIRM or VEREINIGTE MnscmNENFABnnr AUGSBURGUND MASCHIN- ENBAUGEsELLsoI-IAFT ANRNBEne ne., Y or NUREMBERG, GER-MANY.

PlsToN Fon GAS olRfolTlfzlEvn` :vio-tions".l j

SPECIFICATION forming-part ofLett'ers Patent No. 700,309, dated May 20, 1902..

Application inea Decemberlalsee. Striano. 740,895. (No man.)

To all whom t may concern/: y

Be it known that I, HERMANNEDGAR Enns,v a subject of the Queen of Great Brit-ain, residing at Nuremberg', Bavaria, German` Emi pire, have invented certain new and useful Improvements in Pistons for `Gras 'or other'` Motors, of which the follow-ingis a fullrclear, and exact description. Y j,

The present invention relates to pistons for gas and other motors; andiit consists'of` the and particularly pointed outinl the claims.

' the'front part of the' piston only has usually vIn order to render the presentspecica'tion easily intelligible, reference ishad to the ac-v compan yin g drawings,in which similar letters of reference denote similarparts throughoutv bothviews. f i. Figure'l is alongitudinal"section through thecenter of the piston, and Fig. 2' a front v'elevation of the same. i i

In pistons for gas'andpetroleumlmotors i been employed to guide thev samein the cylinder, the rear part beinggenerally of a slightlyv piston, which in pistons'serving as cross-head at one andthe same timeserves to guide the whole piston in the cylinder, easily gets Worn smaller diameter and having the piston-rings. It hasvbeenfoundthat the front part of the out, whereupon it becomes necessary tov re- A place the Whole'piston with anew one. rlhen again the large area connecting the rearward f and forward piston parts causes the distribution of veryconsiderable heat from therear to the fore part of'the piston, thus considerpart of thepiston which serves to guide the same in the vcylinder is made entirely sepa'-V `rate from the rear portion which serves to g f'carry the packing-rings and to close gas-tight against the walls of the cylinder.

1 According to the presentinvention thepisshort shaft d, which may be screwed into or "otherwise attached tothe pistonvproper, ct. :The part f isadvantageously made of the two -semicylindrical halves, asvshown at Fig. 2,

and contains `the cross-head c therein, the said halves being advantageously attached 'toi tlie-c'ross-head by means of the screws e e.

.The particular construction of the parts lton proper, a, is provided with the packing rings h,`while thefrontor guiding part f therev of` is attached to the rear part by means vof a l and the method of attaching them together p is indifferent and may be carried ont in any suitable manner.

I claimas my invention-- A y l. v In combination, the cross-head, the semicylindrical removable and interchangeable guiding portions carried thereby, a short shaft integral with said cross-head extendingvaxially rearward therefrom, a rear piston portion threaded, on'said shaft and packing-.rings i. f carried thereby, substantially as described.

2. In combination, a ,cross-head, alguiding and a packing cylinder, said guiding-cylinder .consisting ofa plurality of segmental sections u removablyk secured tothe cross-head and a connection between the packing-cylinder and the vcross-head, substantially as described.

In Witness whereof Ihave hereunto set my hand in presence of two witnesses. HERMANN EDGAR EBBS.

Witnesses: v

ANDREAS S'.I ICH, OSCAR Boon. 

